package com.wyw.design.model.learning.behavioral.observerpattern;

/**
 * @Title   抽象观察者（订阅者接口）
 * @Description
 * @Author Mr Wu yewen.wu.china@gmail.com
 * @Date 2023/4/18 16:37
 * Update History:
 * Author        Time            Content
 */
public interface Observer {
    public void update();
}
